Independent power supply with build-in power source,directly draws power from the incoming end to avoid the risk of protection function failure caused by external power supply failure.
● Overload protection
● Short circuit protection
● Isolation
● Controlling
● Used in residential building, non-residential building, industry, energy and infrastructure
Functions
● Protection of plant and equipment against overload or damage by ground faults (ground-fault protection)
● Protection against fire hazard caused by insulation faults
● Switching and protection devices for motors, transformersand capacitors
● Disconnector units with features for stopping and switching off in an emergency in conjunction with lockable rotary operating mechanisms and terminal covers
Instruction of type code
● Here is code of N-pole type for 4 pole circuit breaker:
A: N-pole fixed without over-current release unit, it has been connected all along, and does not act with other three poles to turn on or off
B: N-pole fixed without over-current release unit, it acts with other three poles
Technical Specifications
Tripping characteristic
● For power distribution
● For power distribution
Action time of residual current protection
Outline and installation dimensions
For power distribution
For motor protection
